A novel pulsewidth control scheme for fixed-frequencyzero-voltage-switching DC-to-DC PWM bridge converter
Hamdad, F.-S.; Bhat, A.K.S.
Industrial Electronics, IEEE Transactions on
Volume 48, Issue 1, Feb 2001 Page(s):101 - 110
Digital Object Identifier   10.1109/41.904569
Summary:A new gating pulse scheme is proposed for the control of DC-to-DC pulsewidth-modulated (PWM) bridge converter that provides zero-voltage switching (ZVS) for all the switches for a wide variation in load and input voltage. This new complementary fixed-edge gating control scheme is compared to the traditional phase shift control scheme. Modes of operation are presented and analyzed. Based on the analysis, design procedure and design curves are obtained. An optimum design is given and a design example is presented. Results obtained from PSPICE simulation for the converter designed are given to verify the performance of the proposed converter for varying load as well as line voltage. Detailed results obtained from a 500 W experimental converter are given to verify the advantages of the proposed gating scheme

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